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   1  <?php
   2  /**
   3  *
   4  * This file is part of the phpBB Forum Software package.
   5  *
   6  * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7  * @license GNU General Public License, version 2 (GPL-2.0)
   8  *
   9  * For full copyright and license information, please see
  10  * the docs/CREDITS.txt file.
  11  *
  12  */
  13  
  14  namespace phpbb\passwords\driver;
  15  
  16  class md5_vb extends base
  17  {
  18      const PREFIX = '$md5_vb$';
  19  
  20      /**
  21      * {@inheritdoc}
  22      */
  23  	public function get_prefix()
  24      {
  25          return self::PREFIX;
  26      }
  27  
  28      /**
  29      * {@inheritdoc}
  30      */
  31  	public function is_legacy()
  32      {
  33          return true;
  34      }
  35  
  36      /**
  37      * {@inheritdoc}
  38      */
  39  	public function hash($password, $user_row = '')
  40      {
  41          // Do not support hashing
  42          return false;
  43      }
  44  
  45      /**
  46      * {@inheritdoc}
  47      */
  48  	public function check($password, $hash, $user_row = array())
  49      {
  50          if (empty($hash) || strlen($hash) != 32 || !isset($user_row['user_passwd_salt']))
  51          {
  52              return false;
  53          }
  54          else
  55          {
  56              // Works for vB 3.8.x, 4.x.x, 5.0.x
  57              return $this->helper->string_compare($hash, md5(md5($password) . $user_row['user_passwd_salt']));
  58          }
  59      }
  60  }